Cottonwood Question?

[Michael Butash]

Mike,

Nope, 5100 and 5150 are docsis 2.0 only.  They'll still "work", just
only at 15mb/s and down (unless they figure out a 2.5 hack or some
such).  Docsis 3.0 is its own new beast all together.

Another round of modems for everyone!  At least for 3.0 goodness.

-mb


On Wed, 2009-07-29 at 08:09 -0400, mike havens wrote:
> will the sb5100 still be usable?
> 
> On Tue, Jul 28, 2009 at 11:31 PM, Michael Butash <michael at butash.net>
> wrote:
>         David,
>         
>         No, sorry to say, but you can't upgrade via firmware.  New
>         docsis 3.0
>         uses something of a MIMO-kind of muxing of multiple
>         upstream/downstream
>         channels, much the way 802.11n does, or some of the bastard
>         hack
>         variants of 802.11g do for "speed boost" resulting in
>         increased
>         bandwidth.  This requires more granular/precise clocking,
>         faster
>         processing, whole new chipsets, and a gigabit ethernet port
>         (150mb/s
>         theoretical max downstream) to achieve this.  The only modem I
>         know of
>         on the market currently is the Motorola Surfboard 6120, which
>         frys sells
>         for around 90 bucks.
>         
>         If I'm not mistaken, I think 2.0 is good to around 12-15mb/s
>         tiers
>         because it does some channel-bonding itself, just not to the
>         level to
>         get the 25mb/s down cox is starting to roll out, or the 50mb/s
>         charter/comcast are on the east cost.
>         
>         -mb
>         
>         
>         
>         On Tue, 2009-07-28 at 17:19 -0700, David Munson wrote:
>         > Anyone know if existing 2.0 compliant cable modems can be
>         updated to
>         > support 3.0 (presumably via firmware), or will I have to get
>         a new
>         > cable modem once 3.0 is rolled out in my area?
>         >
>         > I have a Linksys BEFCMU10 cable modem and it's served me
>         well for the
>         > past 5 years, but I haven't seen anything from Linksys
>         (geared for
>         > home use, anyway) that's DOCSIS 3.0 compliant.
>         >
>         > On Tue, Jul 28, 2009 at 2:03 PM, Michael Butash
>         <michael at butash.net>
>         > wrote:
>         >         Most any will work, just avoid the really
>         cheap/off-brand ones
>         >         (best-data frys specials are known by cox to have
>         issues with
>         >         latest
>         >         infrastructure code, now unsupported).  I'd
>         recommend making
>         >         sure it's
>         >         at least docsis 2.0 capable, and if you want the
>         really high
>         >         tiers of
>         >         service (15mb+) get a motorola 6120, as they support
>         docsis
>         >         3.0 which is
>         >         rolling out now.
>         >
>         >         -mb
>         >
>         >
>         >
>         >         On Tue, 2009-07-28 at 12:54 -0700, Jason Holtzapple
>         wrote:
>         >         > mike havens wrote:
>         >         > > that was probably a stupid quesxtion; is a cable
>         modem a
>         >         cable modem...
>         >         > > meaning any of them will work on any system?
>         >         >
>         >         > If cox is the provider, they have a supported
>         list:
>         >         >
>         >         >
>         http://support.cox.com/sdccommon/asp/contentredirect.asp
>         >         >
>         >         > I have and use a Motorola SB5101 and have no
>         issues.
>         >         >
>         >         > --Jason
>         >         >
>         >
>         >
>         >         >
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> 
> 
> -- 
> :-)~MIKE~(-: